I bought a pixel 9 fold to run GrapheneOS. I didn't consider running stock android, and wouldn't use a Samsung phone if you gave it to me.
Apple doesn't really offer anything comparable in screen size or form factor, so it's hard to compare in some ways. I like the fold quite a bit, but it has it's quirks. The Qi/magnetic charger is trash, battery life is just ok, hardware doesn't appear as durable as the iphone, and there aren't great case options for the fold, and the cases that have a mag charger option have it in a place that makes magsafe accessories not fit in the right spot (they hang off the bottom a little).
Graphene has it's own set of quirks that take a little getting used to. But overall I'm loving it. The only real sucky thing is that the keyboards are different enough that I can't type for shit.